CVE-2021-47485
Last modified
CVE-2021-47485 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. In the Linux kernel, the following vulnerability has been resolved: IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields Overflowing either addrlimit or bytes_togo can allow userspace to trigger a buffer overflow of kernel memory. Check for overflows in all the places doing math on user controlled buffers.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields Overflowing either addrlimit or bytes_togo can allow userspace to trigger a buffer overflow of kernel memory. Check for overflows in all the places doing math on user controlled buffers.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Linux | Linux Kernel | >= 2.6.35, < 4.4.292 | — |
| Linux | Linux Kernel | >= 4.5, < 4.9.290 | — |
| Linux | Linux Kernel | >= 4.10, < 4.14.255 | — |
| Linux | Linux Kernel | >= 4.15, < 4.19.216 | — |
| Linux | Linux Kernel | >= 4.20, < 5.4.157 | — |
| Linux | Linux Kernel | >= 5.5, < 5.10.77 | — |
| Linux | Linux Kernel | >= 5.11, < 5.14.16 | — |
| Linux | Linux Kernel | 5.15 | Rc1 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2021-47485?
How severe is CVE-2021-47485?
How do I fix CVE-2021-47485?
Are you affected by CVE-2021-47485?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST